Big bore/stroker kit for gen 2?

[DragginBusa]

Wanted to know who is running some sort of bore/stroker kit on their gen 2's and what their thoughts are in them? I've seen a couple of places that have some kind of "kit" but wanted to hear first hand from people running them. Thanks in advance everyone!

 

[dadofthree]

Lots of folks on here you could PM, gixerhp, powerhouse, johnnycheese,


BUMP

 

[DragginBusa]

Lots of folks on here you could PM, gixerhp, powerhouse, johnnycheese,

BUMP

Thanks will have to check it out!

 

[POWERHOUSE]

The Gen 2s cylinder is ¨scalloped¨ at the bottom of each cylinder bore. This was done to relieve some of the cylinder pumping pressures in the crankcase in order to free up some horsepower. This is an old engine builder trick that was accomplished in a variety of ways on different motors. In the case of the Gen 2 Busa, it weakens the block, and overbores have been know to crack. If you are going to go down this road, be sure to use a cylinder block off a Gen 1 . . .

 

[DragginBusa]

The Gen 2s cylinder is ¨scalloped¨ at the bottom of each cylinder bore. This was done to relieve some of the cylinder pumping pressures in the crankcase in order to free up some horsepower. This is an old engine builder trick that was accomplished in a variety of ways on different motors. In the case of the Gen 2 Busa, it weakens the block, and overbores have been know to crack. If you are going to go down this road, be sure to use a cylinder block off a Gen 1 . . .

Thank you. Will def keep this in mind

 

[Jay]

Gen 2 cracked blocks

Hayabusazone - Pistons, Blocks, Engine Kits

 

[Blanca BusaLess]

Gen 2 cracked blocks

Hayabusazone - Pistons, Blocks, Engine Kits

So I'm confused? From the link it says 5 more like 2% of GenII blocks crack and no 83mm have done so.
Frank says go GenI if doing this and from your link 2% doesn't sound too bad. So which way is it? Safe to use a GenII block or not? Not questioning either of your expertise, just curious.

 

[GIXERHP]

The Gen 2s cylinder is ¨scalloped¨ at the bottom of each cylinder bore. This was done to relieve some of the cylinder pumping pressures in the crankcase in order to free up some horsepower. This is an old engine builder trick that was accomplished in a variety of ways on different motors. In the case of the Gen 2 Busa, it weakens the block, and overbores have been know to crack. If you are going to go down this road, be sure to use a cylinder block off a Gen 1 . . .

+1 on the Gen 1 block, i have 2 cracked Gen 2 blocks here!

 

[TurboR1391]

I cracked a Gen II 3 mil spraying nitrous in 2008. I went Gen I and haven't looked back.